Slip cover for seat cushions



Feb. 8, 1949. 1. A. EVANS SLIP COVER FOR" SEAT CUSHIONS Filed Feb. 6; 1947 FIG. 6

AT'IIORNEY Patented Feb. 8, 1949 UNITED STATES PATENT OFFICE 2,460,928 SLIP COVER Foe SEAT CUSHIONS -Isaac A. Evans, Muncie, Ind. Application February a, 1947, Serial No. 726,746

2. Claims. (01. 155- 182) On account of the severe .wear to which the surfaces of the automobile seat cushion is subjected, there has long been the need of an auxiliary or slip cover for said surfaces, a cover that would be durable, easy to apply, neat in appearance and form fitting, and resistive of tendencies to become wrinkled, distorted, or displaced.

Qualities desired in such proposed new cover are that besides being so constructed that. it is capable of being applied to close adherence with said cushion, and of being of form to fit neatly not only to the top surface but also the front, the back, and the ends of the cushion, it must be so designed as to be susceptible to the practice of standardizedproduction methods, and of being economical of manufacture.

To provide a cover affording the above named advantages, and also to provide a method and procedure of making same which is capable of being practiced by a person of ordinary skill, and which said method lends itself to a considerable saving of time and material is the object, broadly stated, of my invention.

The said general object, as Well as other and more specific aims which will presently appeal, are accomplished by the new construction, combination and arrangement of parts, and by the several transactions of which my newmethod of manufacture consists, are described and explained in the following specification, and illustrated in the accompanying drawings.

In the drawings- Figure 1 is a plan view-of a quota of textile fabric fashioned to conformation for constituting, as it does, the body piece ofmy new slip cover. The broken lines appearing in-this view are to be referred to in the description of procedure of making the cover.

Figure 2 is -a detail view of the curves and angles that are involved in the opposed frontal upper corners of the top portion of the cover, and of the forward portions of the side wall portions of the cover.

Figure 3 shows the conformation of the left hand wall piece.

1 Figure 4 shows the conformation of the right hand wall piece.

Figure 5 is a front View indicating the appear-v ance of the new cover applied to-a cushion of the class hereinbefore mentioned, and before the free bottom marginal portions of the cover will have been turned inwardly.

Figure 6 is an end view, in the direction of arrow B in Figure 5.

Figure 7 is a front View illustrative of arr-automobile seat cushion of conventional form and, proportions selected as being suitable for the purpose of showing a typical application of my invention. 1 Figure 8 is a top plan View of the view shown in Figure 7.

Figure 9 is an end view, in the direction of arrow 8 in Figure 8.

Figure 10 is a perspective view indicating the appearance of my new cover applied to the cushion, and after the bottom marginal portions have been turned and fastened to the underside of the frame of the cushion.

Figure 11 is a perspective View showing the appearance of the new cover as indicated in Figure Hi the cushion being inverted.

Referring now to the typical cushion, as in Figures 7, 8 and 9. The angle of incline each,

, of the front wall A, and back wall B, is approximately seven and one half degrees from the perpendicular of the base of the cushion. The curvature of the quadrantal corners 0 each, of the frontal portion of the top surface of said cushion is of an arc of ninety degrees. The interior structure of the cushion comprises the usual frame, and the springs and padding (not shown) imparting to the cushion the usual yieldability and resiliency.

From the stock of textile fabric, as leatherette, tapestry, herring-bone and the like, is cut abody piece quadrilateral in formation and of predetermined length and width L and W respectively. Main portion ll between parallel demarcations l2 and M is of outline corresponding to thcoutline of the top surface of the said cushion. Portion l6 between the demarcations l2 and I1 is of the dimensions corresponding to the length and height of the back wall B of said cushion. Portion l8 between the demarcations l4 and I9 is of dimensions corresponding to the length and height of the front wall A of the said cushion.

The conformation of each of the extremities of the said front portion I8, is of a reversed curve consisting of the convex arc 2| of radius same as radius of curve C of said cushion and concave are 22, and of a tangent 24 which extends from said are 22 at an acute angle F to demarcation line 14 and through the marginal portionthereat.

G designates a broken straight line on which the centers of said arcs 2land 22 are located. It is inclined at an angle Q to the perpendicular Q drawn through center of arc2l to demarcation line H. The point M of tangency of said arcs is coincident with said demarcation line H.

End wall pieces 26 and 26 being similar in conformation and dimensions (one being designated L as indicating left hand, and the other being designated R indicating right hand) same are described in singular. Each has its rear end H of height same in dimension as the width of the back wall portion l6 of said body'piece. The forward extremity of said wall piece is of the formation of an are?! and of a tangent 28 which extends from said are at' an inclination from the top edge 29' of said wall piece at an angleP which is the same in degree as angle K (see Figure 2). The said upper edge 29 is of length equivalent to the distance marked 0 on the main portion of the said body sheet plus the curve of arc 2| andto thepoint of tangeney M. p

The external broken border lines adjacent to boundary lines of the top and ends of said end wall pieces, and the ends of the main portion H; of the body piece and of the ends of side portions thereof IE and i8 respectivelmindicate the borders to be lain together for stitching.

The transaction of combining the said body piec and the said end wall pieces, consists of layi g one of the saidend wall pieces. (as indicat d by the broken lines in Figure 1) in positie with the borders of iorward edges 23-2! in side by side arrangement with the edges 28-22 ofthebod-y piece, cord welt. or its equivalent (not shown) being interposed between the opposed faces of said edges. Stitching by machinethen proceeds, and as point M is reached, the edge 29 of the end wall piece is rolled on the are H and'along the edge ii of. the main portion of the body piece, stitching proceeding at the same time and thence along the edge 23 of the back portion h: of the body piece and the edge HI of the rear endof said. end wall piece. The procedure of securing the other end wall piece to, the opposite end of the body sheet is the same as above described. The stitching operation may start either at theend edges Iii-23, or the frontal edges 2.824-. With the combining of both of the end wall pieces to the body piece, as above described, the cover will have been completed.

The marginalportions. 34 and 35 of the body and the: marginalportions 35 of the end: Wall pieces provide flaps, slitted as at, 3T and39, are. adapted to be: turned inwardly and fastened insuitable manner as by hog rings or cords to the bottom oi the cushion frame if of metal or wire, or by tacks, if the frame is of wood.

The construction accomplished as above de scribed constitutes: a cover composed of a minimum number of pieces, is substantial, close fitting and of neat. appearance and. by reason of its corn-er contents constructed; and arranged as described, the inherent quality of resiliency re siding in the cushion is made to contribute to the close fitting and firm union with the cushion surfaces. Adaptation of the invention in manufactnri ng procedures involves modifications. only that are incident to angles of inclination depart materially from the: conventional angies dealt with in the embodiment of my invention as it is herein described and. illustrated.

Applying my new cover consists simply in placing the front portion i8. and the. main portion H of the cover upon the front wall:v A and top sm" face respectively, of the cushion. Thenby bear i'ng down on the. .cambereet'surfiaice of: the cushion and; hooking axcorner of the end portion of the. back portion Hi over. a rear-corner of the cushion, and by working: theaniidportion rearwardly and Working the said back portion i5 dow-nwardldy the other end portion of said back portion isreadhookeds OM91 the remaining corner of the cushion. By their drawing and working down the: front, back and end. portions, same together with the mid or mainvportion of the. cover will have come: to immediate and adhering, union with the surfaces. of the cushion, the; tautness of said; union: bein contributed tu by the. upward bulge. of the-top surfaeewof thecushion.

Securing the margmalbottom portions, of flaps.

on the said cover consists in turning them inwardly and then fastening same in suitable manner to the under part or parts of the frame.

Experience with my invention having proved that. the stretching incident to applying the cover is inconsiderable, the making of same to close dimensions and contours as described is practicable.

It will be understood that minor modifications may be. made, within the scope of the invention as it is defined in the claims, Without departing from the spirit or principle of the invention on sacrificing any of its advantages.

What I claim as my invention is- 1. A slip cover of the kind described, consisting of a body piece of textile material quadrilateral in conformation and of predetermined length, the main part thereof being of predetermined width and its opposed parallel side portions each being of predetermined width, one of said side, portions being greater in width than the other, the. frontal corner portion of said main part and. the adjacent side edges of the wider of said side portions being of the conformation of .a reversed curve having. arcs with acute central angles, and of a tangent extending from the concave arc of said curve, the mutual point of t angency of said arcs coinciding with the line of iuneture of said part and the wider side portion of said body piece, and wall pieces trapemidal in shape. each. having one of its end edges equal to. the width of the narrower side portion of. said body piece, and having a top edge equal in. length to the sum of the lengths of the side 3 edge of. the main: part of said body piece and the edge of the convex arc of said reversed curve, and the other of its endedges of the same conformation asthe aforesaid concave arc and tangent, the said end edges and top edge of each of said end wall pieces. being bound to a side edge of said body piece.

2. A slip: cover for an automobile cushion quadrilateral in plan and trapezium shaped in cross sections consisting of a body piece of textile material the main portion thereof being of conformation to correspond with the conformation of the top surface of the cushion, and its opposed. parallel side portions being of predetermined width, one to correspond with the height of the. back, and the other to correspond with the of the front. side, of the said cushion, the frontal corner portions of said main portion and. the adjacent side edges of the front side portinn of said; body piece being of the conformation of a reversed. curve havingv arcs with acute central angles, and of a tangent extending from the concave arc of said curve, the mutual point of tangency of said; arcs coinciding with the line of juncture of said main portion. and said front side portion of the body piece; end wall pieces trapezoidal in shape each having a rear edge equalto the height of the rear side of said cushion, a top edge equal in length to the sum of thelengths of the side edge of said main portion and the edge of the convex arc of the said reversed curve, and a. front edge of the same conformation as the aforesaid concave arc and tangent, the said rear edge, top edge and front edge of each of said end wall pieces being sewn to a side-edge of said'body piece.

ISAAC A. EVANS.

No references cited. 

